IPA: /oʊˈpeɪkər/
KK: /oʊˈpeɪkər/
This word describes something that does not allow light to pass through, making it difficult to see through it. It is used to compare the degree of opacity between two or more objects.
The new curtains are opaquer than the old ones, blocking out more light.
Comparative: more opaque
Superlative: most opaque
Opaquer → It is formed from "opaque" (from Latin "opacus", meaning shaded or dark) and "-er" (meaning one who or that which). The word "opaquer" refers to something that is more opaque or less transparent than something else.
Think of something that is 'darker' or 'shaded' ('opacus') — that's why 'opaquer' means more opaque.